Cut-off valve



May 5, 1925. 1,536,874

P. R. BATES GUT-OFF1 VALVE Filed Nov. 22, 1921 WITN ESS: ATTORNIY Patented May 1925.l

rnrnn reversa-Barns, or sassari, Waerme.

Kp citrons VALVE.

,'VAl'ip'ueation ined November 22,11921'; serial Nb. 517,149.v l i. y

To allwhom t may concern: v

Be uit known that I, PETER Rors'rnn BATES; a citizen ofthe United States, residing at Graham, in the county yot lazewell and State of Virginia, have invented'new and useful Impro-vements in Cut-Oil Valves, of which the following is a speciiication'.

This invention relates to improvements in valves.

An object is to provide a cut-oi valveffor vuse in mills embodying novel features of construction whereby the flow of grain, seed or the like :tromy a bin or other holder will be completely stopped wheneverl the mill should cease to operate for any reason whatever.

Another object is to provide a cut-oli valve which operates automatically under the influence of an electromagnet which is controlled bythe electric circuit furnishing the necessary operating power. for the mill. `With the above andother objects in view, the invention consists in certain novel `feaures of construction combination and arrangement of parts, as will be more fully described and particularly pointed out in the appended claim. y

In the accompanying drawings:

Figure 1 isv a top plan view of the invention with thespout removed and showing the valve in fullk lines in closed position and in dottedy lines in openy position. f r

Figure 2 is a` vertical sectional view taken on the line 2-2 of Fig. 1.

Figure 3 is a sectional view taken on line 3-3 of Figure 1.

Figure4 is adetail perspective view of the valve.

Referring now to thedrawings, in which like characters o'f reference designate corresponding parts throughout the several views, the numeral 10 designates an inclined square grain spout of any "suitable length which is provided at its lower end with a V-shaped projectionll and is adapted to convey grain,

'y seed or theilike from any suitable source of supply to a mill indicated generally at A.

A horizontal frame 12 is located between the mill and the lower endof the spout and is provided with an vopening 13 at one end receiving a valve casing 14' which is provided with an inlet opening 15 and yan out-v let opening 16 for the purpose of establish- 'n ing communication between the'end 'of the* spout and the mill. f

The `casing is removably secured to im peprAoJd sr pue anode erp, ro pue .temor the a V-shaped rextension 17 dening a valve seat which communicates with the V-shaped projection 11 ofthe spout. v r r Secured to the lower surface of the vframe and extending inwardly from the opposite edges of the opening 13 are a plurality of relatively short arms 18 supporting triangular .shaped slides19 provided with sharp edges 20 so as to separate the grain and permit the same to pass upon opposite sides lthereof incident to the movement of an elongated valve` 21. The valve 21 has a point ed end22 provided with beveled edges 23 which are adapted to engage the V-shaped extension of the casing and cooperate with `'the vsharp edges of the triangular shaped of the lever which is provided with a handle 30. A bolt 31 extending from a tapering extension 33 `of the valve passes through an elongated slot 32 formed in the lever and `isretained in position by means of a suitable lockrnut 34 and washer 35.

Secured to the opposite end of the frame is .a bracket 36 provided with a threaded `transverse opening 37 and receiving an adjusting screw 38 provided with a T-shaped handle 39 for the purpose of regulating the' tension of a coil spring 40 provided with a cap 41 which has a swivelled connection with the adjusting screw and is removably securedfto a hook 4L12 extending from the lever adjacent to the handle 30 thereof.

' In use` `when the mill is working, the lever is moved toward the electromagnet so that the contact 26 will be energized by the elecv i vtric contact 25 andretain the valve in open position against the tension of the spring. However, should the mill cease to operate for any reason whatever, the electric contact 26 will `be de-energized and consequently the spring will actuate the valve and stop the How of grain. y

`While it is believed that from the foregoing description the nature and advantages of the invention will be readily apparent, I

desire` to have it understood that I do not limit myself to what is herein shown and described and that such changes may be resorted to when desired as fall Within the scope of what is claimed.

What I claim is The combination With an inclined square spout provided with a V-sl1a,-ped projection, of a casing provided with n. V-shaped eXtension and reinovabh7 secured toseidy spout, a frame Surrounding safid casing, a lever pil-votally mounted on said frame, a pointed bevelled edged valve slidztbly mounted in said casing and pivote-ily connected to said lever, sha-rp edged guide means for supporting said valve in operative position and to separate material in the spout when the valve is in open position, electrical means for retaining said valve in open position and spring meansy for seating said valve when the electrical means is deenergized.

In testimony whereof I wifi-x my signature.

RQYSTER BATES'. 

